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May 12, 1964 a. H. TINGLEY 3,132,801

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CONTROL MECHANISM FOR CALCULATING MACHINE Original Filed May 12, 1954 21 Sheets-Sheet 6 May 12, 1 964 B. H. TINGLEY CONTROL MECHANISM FOR CALCULATING MACHINE 21 Sheets-Sheet 7 Original Filed May 12, 1954 unm 0mm awn 2.. g iii-i i mv v LR Non nvv 2v SAX oE B M y 1954 B. H. TINGLEY CONTROL. MECHANISM FOR CALCULATING MACHINE 21 Sheets-Sheet 8 Original Filed May 12, 1954 Nhn "I NON fl I C a I MAN M y 1964 B. H. TINGLEY CONTROL MECHANISM FOR CALCULATING MACHINE 21 Sheets-Sheet 9 Original Filed May 12, 1954 #mN hm nQQ an N** FM May 12, 1964 B. H. TINGLEY 3,132,301

CONTROL MECHANISM FOR CALCULATING MACHINE Original Filed May 12, 1954 21 Sheets-Sheet l0 y 2, 1964 B. H. TINGLEY 3,132,801

CONTROL MECHANISM FOR CALCULATING MACHINE Original Filed May 12, 1954 21 Sheets-Sheet 11 M y 1964 B. H. TINGLEY CONTROL MECHANISM FOR CALCULATING MACHINE Original Filed May 12. 1954 21 Sheets-Sheet l2 May 12, v1-964 a. H. TINGLEY 3,132,801

CONTROL MECHANISM FOR CALCULATING MACHINE Original Filed May 12, 1954 21 Sheets-Sheet 13 May 12, 1964 s. H TINGLEY CONTROL MECHANISM FOR CALCULATING MACHINE 21 Sheets-Sheet 14 Original Filed May 12, 1954 May 12, 1 964 B. H. TINGLEY CONTROL MECHANISM FOR CALCULATING MACHINE 21 Sheets-Sheet 15 Original Filed May 12, 1954 May 12, 1 964 B- H. TINGLEY 3,132,301

CONTROL MECHANISM FOR CALCULATING MACHINE Original Filed May 12, 1954 21 Sheets-Sheet l6 S- H. TINGLEY CONTROL MECHANISM FOR CALCULATING MACHINE May 12, 1964 Original Filed May 12. 1954 21 Sheets-Sheet 17 May 12, 1964 B. H. TINGLEY CONTROL MECHANISM FOR CALCULATING MACHINE 21 Sheets-Sheet 18 Original Filed May 12, 1954 May 12, 1964 B. H. TINGLEY 3,132,301

CONTROL MECHANISM FOR CALCULATING MACHINE Original Filed May 12, 1954 21 Sheets-Sheet 19 May 12, 1964 B. H. TINGLEY 3,132,801

CONTROL MECHANISM FOR CALCULATING MACHINE Original Filed May 12, 1954 21 Sheets-Sheet 2O 

1. IN A CYCLICALLY OPERABLE POWER DRIVEN MACHINE OF THE CLAS DESCRIBED HAVING A DEPRESSIBLE MOTOR BAR, A DECIMAL KEY FOR INITIATING THE PRINTING OF A DECIMAL, A SUBTRACT KEY FOR CONTROLLING THE SETTING OF SAID MACHINE FOR SUBTRACTION OPERATION, AND MECHANISM OPERABLE FOR INITIATING STARTING AND STOPPING OF SAID POWER DRIVEN MACHINE, SAID INITIATING AND STOPPING MECHANISM BEING OP ERABLE TO AN INITIATING CONDITION AND BACK TO A STOPPING CONDITION, A LATCH LEVER PIVOTABLY MOUNTED FOR ACTUATION FROM AN UNLATCHING POSITION TO A LATCHING POSITION, MEANS BIASING SAID LATCH LEVER INTO LATCHING POSITION, A MOTOR DRIVE LATCH LINK OPERATIVELY RESPONSIVE TO ACTUATION OF SAID INITIATING AND STOPPING MEANS, SAID MOTOR DRIVE LATCH LINK, UNDER CONDITIONS WHERE SAID INITIATING AND STOPPING MEANS ARE IN INITIATING CONDITION, BEING ACTUATED INTO LATCHING ENGAGEMENT WITH SAID LATCH LEVER FOR MAINTAINING SAID AND MEANS OPERATED BY THE DEPRESSION OF ANY ONE OF SAID INITIATING AND STOPPING MEANS IN SUCH INITIATING CONDITION, KEYS AND BAR TO ACTUATE SAID LATCH LEVER AGAINST THE FORCE OF SAID BIASING MEANS OUT OF SAID LATCHING POSITION. 